-A A +A
We study the possibility to use Single Photon Avalanche Diodes (SPADs) optically coupled to scintillating fibers as a novel type of gamma-ray detector for space applications. SPADs are silicon devices operating under polarization conditions above the junction breakdown voltage (typical overvoltage of 5V), for which a single photon interacting in the active region is sufficient to trigger a self sustainable avalanche discharge. SPADs can thus be used for the detection of very low light levels with an absolute timing accuracy of about 30 ps for single photon detection, without spectroscopic capabilities. In this presentation we report the preliminary results on large area SPAD (actual results refers to SPADs having 200 μm diameter, with the aim to grow up to 500 μm SPADs) coupled to scintillating fibers as the basic module for a particle tracker for space application. Dark counts rate as low as few tens of kHz at room …
Publication date: 
23 Oct 2011

Martino Marisaldi, Piera Maccagnani, Francesco Moscatelli, Claudio Labanti, Fabio Fuschino, Michela Prest, Alessandro Berra, Davide Bolognini, Massimo Ghioni, Ivan Rech, Angelo Gulinatti, Andrea Giudice, Georg Simmerle, Danilo Rubini, Andrea Candelori, Serena Mattiazzo

Biblio References: 
Pages: 129-134
2011 IEEE Nuclear Science Symposium Conference Record